Unit for heating and ventilating systems



Aug, 30, 1932. R. A. .ILG Erm.

UQIIT FOR- HEATING-AND YENTLATIN SYSTEMS med oct, 4.' 1928 2 Sheets-Sheepv 1 Patented Aaa-.30,1932 'l i I 1,87%@43 Unirse srA'rss PATENT orales ROBERT A. ILe, or CHICAGO, ANL JOHN M. FRANK, or WINNETKA, ILLINOIS, AssIeNORs rro ILG ELECTRIC VENTILA'IING COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or lLOUISIANA Y i UNIT FOR HEATING .AND VENTILATING SYSTEMS Application, filed. October 4, 1928. Serial No. 31,211.

This invention relates to Ventilating applisame becomes better understood by reference ances of the forced draft type, and, in its chief to the following detailed description, taken intended application, consists of a Ventilating in connection with the accompanying drawand air distributing unit of the general charings in which we have illustrated one pracactor disclosed in Letters Patent to John M. tical and useful embodiment of the inven- 55 FranlrNo. 1,295,151, dated February 25,1919, tion, and whereinand tov Robert A. llg No. 1,618,879, dated Fig. l is av perspective elevation showing February 22, 1927, although certain features the appliance suspended fromthe ceiling of of the invention may be usefully employed a room, with the deflector in closed position;

independently of any air modifying agent. Fig. 2 is a central vertical front to rear 60 Among the objects o-f the present invensection of the saine on the line 2--2 of Fig. 4; tion are, to provide, in a Ventilating and air Fig. 3 is a vertical section through the demodifying appliance of the general nature flector frame and vanes showing the latter in disclosed in the aforesaid patent, an improved fully opened position, and also in a partly deflector mechanism in front of the fan where- Opened PC )SitiOIl in. dOtted lines; 65 by the fan discharge opening will be auto- Fig. 4; 1s a horizontal section on the line matically closed when the fan is idle and will O Fig. 2; a

be automatically opened and kept open by Flg. 5 iS e perspective elevation showing the fan blast when the fan is in operation; to the fall and dfleCtOI SSemhly adjusted to provide in an appliance employing a fan and all Vlillglllw pOSilOIl and locked therein; 70

. a variable speed motor for driving the same, Flg. 6 iS a fragmentary view partly in an improvedv deflector mechanism in front vertical section through the bottom walls of of the fan through the operation of which the Casing and piVOted fan-Supporting and the direction of the fan blast will be changed motor-supporting frame, showing the wiraccording to the speed of the fan, whereby7 ing leads to the motor extending through Z5 under a relatively slow running of the fan, the hOllOyV lOWer pivot of the frame. v the blast Will be propelled downwardly to- Referring to the drawings, 1() designates ward the floor, and under a relatively high the top wall, 11 the bottom wall, and 12 the speed of the fan the blast will be propelled Sld Walls 0f. 2L IeCtaIlglllaI Sheet-metal more nearly horizontally; t0 provide a novel llOLlSlIlg 01' CaSlIlg. AS SllOWIl in Fig. 1, the 80 mounting of the famsupporting frame and casing is provided with means by which it the deflector frame and deflector by which may h e Suspended at Varying heights from the direction'of the blast may be varied in a the' Celling Of the rOOm; the means herein horizontal plane, with improved means for SllOWIl Comprising hanger StI'iPS 12' each locking the fan and shutter assembly in anguhaving a. lOIlgitlldlIlal I'OW 0f bOll'; hOleS 12a 85 larly adjusted position; to provide, in asso- @I Hd bOltS 12b that engage With holes in the ciation with such means for angularly adjust- 51de Walls l2 Of the CaSiIlg- FOI' stiffness and ing the motor fan and deflector mechanism, 'Strength the bottom and tol) Walls 11 and 10 means whereby the entire assembly may be may be fOlmed With. VertiCal Side aIIgeS 11 40 swung through a Circle t() the m0- and 10, IBSPSCtlVely that are Spot-Welded OI 90 tor into convenient accessibility for inspec- Otherwise Secured 't0 the Side Walls 12- The tion, oiling, repairs, and the liketo`provide OP Wall 10 also has Pstmding front and a vertically adjustable supporting means for I'faf flanges 10a and 10b, reSPeCtVelVa and in the unit; and, generally, to provide an im- Sld? the ,former is nested 3 stiffenlng angle proved and more efficient, Ventilating Stl'lp bottom yall lS likewise 95 vance of the character described than has hereformed With downtu'ned front and Tea-l tofoye been known, flanges 11"L and 11b, respectively. i

Still other objects and attendant advan- In the front portion of the rectangular tages of the invention will be apparent to per.- casing above described is pivotally mounted 5 sons familiar with this class Of devices as the a power-driven fan and defiecter assembly 26 flange 18 and the bottom wall 11 comprising, as herein shown, the following parts. A. supporting frame for said assembly consists of a sheet-metal front panel 15 formed with a large circular opening to accommodate the motor-supporting ring and with rearwardly extending wing portions 16 (Fig. 4) that are transversely curved on centers coinciding with the pivotal axis of the structure so as to have free sliding engagement with inwardly bent frontv flanges 12c of the side walls 12 when the structure is swung on its pivotal axis. On the upper and lower edges of the panel 15 are rearwardly turned flanges 17 and 18 respectively suitably connected at their ends with the side or wing flanges 16. The top flan e 17 the top wall 10, and the horizontal lim of the reinforcing angle strip 14 are formed with alined holes to receive an upper pivot bolt 19, a spacing washer 20 lying between the flange 17 and the wall 10. The bottom are similarly formed with alined holes to receive a hollow pivot stud 21 (Figs. 2 and 6) that, in the construction shown, is formed integral with a hollow housing member 22 for .the circuit lines of the motor, said housing 22 being spot-welded or otherwise secured to the flange 11a and connected to and forming a continuation of a tubular housing 23 extending through one of the side walls 12.

Fitted in the central opening of the panel 15 and suitably attached to the latter is a motor-supporting frame comprising a ring 24, arms 25, and a ring or band 26 in which is mounted the electric motor conventionally illustrated at 27. Fast on the armature shaft of the motor` 27 is the propeller fan 28.

Fastened to the outer face of the panel 15 by bolts 29 is a spacing frame 30, and secured by the same bolts 29. to the front of the spacing frame 30-is a rectangular deflector frame 31. Journaled in and between opposite sides of the frame 31 are a series of uniformly spaced spindles 32, secured on which spindles are a group of thin sheetmetal deflector blades or vanes 33, these latter being formed with rearwardly extending arms 34 that are connected for operation of the shutters in unison by a link 35, which also serves as a counter-weight to partly balance the weight of the vanes.A

In the top wall 10 of the casing is formed a hole 36 (Fig. v5) adapted to register with any of a group of spaced holes 37 formed in the top member 17 of the motor and fan supporting frame, adjacent to one end vof said top member. A similar hole 36 and group of holes 37 are provided on the -opposite side of the wall 10 and frame member 17, as indicated in Fig. 5; and by means of a removable pin 38 passed through the hole 36 and one Iof the holes 37, the fan and motor assembly can be locked'in an angularly adjusted position to either side of the central or straight-ahead position, whereby the fan blast can be directed either straight-forwardly or to either side. It will also be observed that the described structure permits the motor and fan supporting frame to be swung through a half circle, thus bringing the motor 27 outside the casing 'where Iit is in convenient position for inspection, adjustment, oiling or repairs.

1n the rear of the casing we have conventionally shown at 39 an air modifying element consisting of a radiator through which the air is drawn by the fan. The radiator 39 may be supplied at its upper end with a tapped intake boss 40 that may receive a steam supply pipe when it is desired to warm the air or a refrigerant supply pipe when it is desired to cool the air; and on t e lower end of the radiator 39 is a tapped outflow boss 41. As herein shown the top and bottom walls 10 and 11 of the casing are slotted to admit the bosses 40 and 41 and the radiator is secured in place'by removable locking strips 42 and 43 attached to the inner sides of the casing flanges 11b and 10b (Fig. 2).

At 44. we show the circuit wires for the motor 27 extending from a switch 45 (Fig. 1) mounted in conveniently accessible positionron the Wall of the room. said circuit wires extending through the housing members 23 and 22 and the hollow pivot stud 21 to the motor.

Preferably the motor 27 is a motor of the variable speed type and equipped with a switch 45 which ma be set low, intermediate, high speeds and o positions. `With a motor and switch of this type in combination with al deflector mechanism which is opened by the fan blast and closes automatically by gravity, it is possible to vary the direction of the blast in a vertical plane by the speed of the motor itself. Manlfestly, a low speed of the motor and fan only partially opens the deflector vanes, as illustrated by dotted lines in Fig. 3, and directs the air downwardly toward the floor, and a better effect is secured at the floor level by the dropping of the defleetor vanes when the fan is operated at low speed. When it is desired to throw the air blast to higher points in the room, this can be done by simply stepping up the motor through proper manipulation of the switch, the highest speed of the motor opening the vanes practically horizontally, as shown by full lines in Fig. 3, and projecting the air blast substantially horizontally and for a greater distance.

the motor and fan frame can be set to the desired position and locked therein by the pin38. When it is necessary to get at the motor, the motor and fan frame can be instantly turned through a half circle; and it Will be observed that by leading the motor To effect angular varia-v tions in a horizontal plane of the air blast,

nauseas includes an air modifying element, yet it will be understood that for many purposes such air modifying element may be dispensed with without adectingthe benefits and advantages resulting mounting of the fan and shutter mechanism. in other respects also the details of structure may be variously modied within the spirit and purview of the appended claims.

We claiml. The combination of a casing having openings for the flow ofair therethrough, a frame member pivotally mounted on said casing midway between the side walls of the latter to swing on a vertical axis, a propeller fan and fan motor mounted on said frame member, an air modifying element disposed across the path of air flowing through said casing, and a group of horizontally pivoted deflector vanes mounted on said frame member opposite said fan, said vanes closing by g'avity and adapted to be opened by the fan b ast.

2. The combination of a casing having top, bottom and side walls and an openfront, a frame member pivotally mounted in said top and bottom walls midway between said side walls to'swing on a vertical axis, a propeller fan and fan motor mounted on said frame member, an air modifying element disposed across the path of air flowing through said casing, a deflector frame attached to said frame member, a group of deiiector vanes horizontally pivoted in said deflector frame opposite sald fan, ity and adapted to be opened by the fan blast,

and means for locking said first-named frame member in various angularly adjusted p ositions.

3. The combination of a casing having top, bottom and side walls and an open end, a frame member ivotally mounted in said top and bottom wa ls midway lbetween said side walls, and a propeller fan and fan motor mounted on said frame member, its motor being capable of swinging through the open end of said casing to expose the motor outside the latter. A 4. The combination of a casing having top, bottom and side walls and an open' end, a

frame member pivotally mounted 1n said top and bottom walls midway between said side walls and having wings in sliding-engagement with end edges of said side walls, a propeller fan and fan motor mounted on said frame member, and means 'for locking said frame member in various angularly adjgusted positions.

from the described structure and,

said vanes closing byv gravsaid fan and 'the speed of the fan,

frame member pivotally mounted in said top and bottom walls midway between said side walls and having wings in sliding engageE bottom and side walls and an open front, a v

frame member pivotally mounted in the front ortion of said top and bottom walls midway between said side walls andhaving wings in sliding engagement with the front edges' of said side walls, a horizontal wall connecting the upper ends of said wings below the top wall of the casing, one of said horizontal and top` Walls having a hole and the other an arcuate row of holes adapted to register with said hole in various angular positions of said pivoted frame member, a locking pin engageable with said holes, and a propeller fan and fan motor mounted on said frame member. I

7 The combination with an outer frame member, of an inner frame member vertically pivoted on said outer frame member. a propeller fan and variable speed motor therefor mounted on saidinner frame member, a. deflector frame mounted on the front of said inner framemember, and a of defiector vanes horizontally pivoted in said deflector frame, said `gvanes adapted to open under the blast of the fan and direct said blast more or less downwardly according to the speed of the fan, and to close by gravity when the fan is idle.

8. In a Ventilating appliance of the character described, the combination of a casing having top, bottom and side walls and open front andrear, a frame member pivotall mounted in said top and bottom walls mid51 way between said side walls to swing on a verticalaxis, a variable speed fan and fan motor mounted on said frame member9 an air modifying element disposed across the path of air flowing through said casing, a deector frame attached to said frame member, a group o deflector vanes horizontallypivoted in said delector frame opposite said fan, said vanes closing by gravity and adaptedto be opened more or less by the fan blast according to and means for locking said first-named frame member in various angularly adjusted positions.

' v ROBERT A. HJG.

JOHN M. FRANK..

5. The combination of a casing having top, t

bottom and side walls and an open end, a

group 

